sPHENIX is a new collaboration and state-of-the-art detector at Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC). It seeks to answer fundamental questions on the behavior of quarks and gluons at high temperatures and energy densities by studying the strongly-coupled quark gluon plasma generated in relativistic heavy ion collisions. This will be accomplished using a suite of high-statistics and high-precision jet and heavy-flavor measurements to probe the different length scales of the plasma. Large-acceptance electro-magentic and hadronic calorimeters and precision tracking detectors are being developed to make these measurements possible. This talk will focus on key future sPHENIX measurements and the current state of the sPHENIX detector project.